WN 818 then WN 694 at Denver
Buffalo → Denver → Detroit
Timetable, Denver time
18:35WN 818 from Buffalo at the gate
17:55WN 694 to Detroit leaves the gate
23 h 20 apart on the timetable, overnight
WN 694 leaves 23 h 20 after WN 818 arrives on the timetable: more than half a day, so not a connection we count.